Cache memory for use with multiprocessor systems
US5056002A · kind A · utility
39Cited by
7References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 9, 1988 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Feb 9, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0853
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In order to increase a multiprocessing speed, a cache memory is provided with a dual ported storage section so as to be independently accessible by a processor allocated to the cache memory and by another cache memory. The dual ported storage section saves tag addresses and valid tag address information. Each of the tag addresses corresponds to data stored in a data storage section which forms part of the cache. One of two comparators coupled to the dual ported storage section checks to see if an address updated by another cache is in the cache. When this happens, the valid tag address information of the address is invalidated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.